[GLUTEN-7750][VL]: store unsafe batches data

[Zand100]

What changes were proposed in this pull request?

Adds a binary container implementing a Spark MemoryConsumer to be used instead of Array[Array[Bytes]].

(Fixes: #7750)

How was this patch tested?

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)

(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on Github Issues?

https://github.com/apache/incubator-gluten/issues

Then could you also rename commit message and pull request title in the following format?

[GLUTEN-${ISSUES_ID}][COMPONENT]feat/fix: ${detailed message}

See also:

• Other pull requests

[github-actions]

#7750

[Zand100]

I'm not sure if I'm calculating the offset correctly

[zhztheplayer]

@Zand100 Is there any test case can be added for this change?

[Zand100]

@zhztheplayer Is it alright to create the ColumnarBatch this way, using OffHeapColumnVector and constructing a new ColumnarBatch directly from that?

[Zand100]

I'm planning to write unit and integration tests. I'm still getting familiar with the code. I'm guessing for UnsafeArray, I'll write tests similar to https://github.com/apache/spark/blob/master/core/src/test/java/org/apache/spark/unsafe/map/AbstractBytesToBytesMapSuite.java. Could you please point me to some other places to update tests? (I couldn't find the tests forColumnarBuildSideRelation.)